baber/WOPTO huggingface dataset:
Patent GB-1493899-A (GB)
Title: Series closed loop transmission system
IPC: G06F13/00
Filed: 1975-12-04
Abstract: 1493899 Data transmission; looped systems HASLER AG 4 Dec 1975 [10 Dec 1974] 49759/75 Heading H4P A common channel system has several changeover stations, also other transmitting and receiving stations, connected into a transmitting loop which carries signals in one direction whereby parallel line sections, e.g. 8, 10 are connected to pairs of changeover stations, each station by-passing at least one other changeover station (e.g. 6) and carrying, when energized by a fault detector, signals in the one direction. The further standby lines may run from one or more changeover stations to adjacent stations. Fault detectors may lie at each changeover station or there may be a central fault detector at a central point controlling changeover stations. The fault detector may be responsive to pilot frequencies or in digital transmission a monostable circuit having an upset time greater than digit spacing may be used. In Fig. 4, detector 50 enables AND 55 and disables AND/NOT 54 thus through gate 56 loop line 7 is connected to loop line 9 through decoupling amplifier 58. If parallel line 8 is faulty an optional signal device connected through inverter 52 may give an indication. A triple changeover arrangement is given in Fig. 6 (not shown). A transmission error detector may be incorporated in which a circulating synchroniziing bit block is clocked through a register (71) Fig. 5 (not shown) which is recognized at (72) and operates a monostable circuit (74) of long upset time, output from which is passed to the next changeover station; OR 80 also receives a corresponding signal from the preceding station via line (77) and inverter (78). Change to parallel section 8 is made by gate (82) being enabled by line (75)#0 and line (77)#1. A local indicator may be provided or fault indication sent to a central location. One example of such system is described in connection with Figs. 7-9 (not shown). In Fig. 10 (not shown) switching commands are sent via the closed loop, if this is valid, instead of an auxiliary line (94, Fig. 7).
Patent GB-1200893-A (GB)
Title: Candle milling machine and method
Inventor: BARFRED NIELS GEORG
IPC: C11C5/02
Filed: 1966-11-07
Abstract: 1,200,893. Milling candles. N. G. BARFRED. 7 Nov., 1967 [7 Nov., 1966], No. 49808/66. Heading B5A. [Also in Div ision B3] The opposite ends of a cylindrical or other shaped candle body blank 29 are milled, to form the bearing end and candlestick socket end, between preferably oppositely rotating cutters 14 and 20 which are movable on slides 7 and 8 towards and away from each other by pneumatic or hydraulic cylinder means. A pair of candles 29 is simultaneously milled between opposed pairs of the cutters 14 and 20, the candles 29 being retained between opposed jaws (27, 28), Fig. 3, not shown, of a holder 24 which is actuated by a cylinder (30) for sliding movement on guide rods 25 between the milling position and a jaw loading/unloading position vertically displaced therefrom. The upper jaw (27) is preferably fixed to the piston-rod of the cylinder (30) and the lower jaw (28) is slidable on the rod and loaded to the closed position by a spring loaded rod sleeve whereby the jaws are opened on the approach to the loading/unloading position by suitably halting movement of the lower jaw (28). The milling cutters 14 and 20 are continuously rotated by electric motors 16 and 21 during the operating sequence of the machine which is automatically controlled, Fig. 4 (not shown). A pair of candle body blanks 29 are loaded in the holder 24 from an extruder, via a cutting device reciprocating therebetween. The return movement of the cutter relieves a pressurized air impulse to a changeover valve which causes cylinder (30) to lower holder 24 to the milling position where it contacts a switch member which actuates a further changeover valve, so supplying compressed air to the cylinders providing closing movement to the cutters 14 and 20. The milling is terminated by the cutters 14 and 20 engaging microswitches which cause the air supply to the cutter cylinders to be reversed and the cutters to separate, the presssure fluid supply to the cylinder (30) being thereby reversed to raise the holder 24 to its upper position where the milled blanks are ejected by fresh blanks delivered from the cutter.
Patent GB-1512539-A (GB)
Title: Electrical measuring instrument
IPC: G01R21/00
Filed: 1976-12-01
Abstract: 1512539 Measuring power S W ECKETT 1 Dec 1976 [5 Dec 1975] 49990/75 Heading G1U Power to a load 2, Fig. 1, is monitored by scaling 10 the voltage V by selectable 11 factors of sin# and cos#, by applying the scaled voltages Vsin# and Vcos# to a var meter 8 and a watt meter 6 respectively together with the load current I, and by arranging that the outputs of the var and watt meters are summed to provide a quantity proportional to VI(sin#sin# + cos#cos#) = VIcos(#-#), where # is the phase angle of the load current. Thus, by setting # equal to zero and ninety degrees in turn, the sum output will be proportional to watts and vars, and by setting # to maximize the output, the output will be proportional to apparent power VI.
Patent GB-1346080-A (GB)
Title: Process for forming an image on electrically insulating materials
IPC: G03G15/34
Filed: 1971-10-27
Abstract: 1346080 Electro-photography FUJI PHOTO FILM CO Ltd 27 Oct 1971 [29 Oct 1970] 50013/71 Heading G2H A layer of conductive powder is applied to an insulative surface during or after application of a corona discharge; a layer of photo-conductive powder is applied to the conductive powder layer before and/or during application of a second corona discharge; the photo-conductive powder layer is exposed imagewise; the exposed photo conductive powder (but not the underlying conductive powder) is removed; the unexposed photo-conductive powder (and underlying conductive powder) is fixed; and the conductive powder underlying the exposed photo-conductive powder is finally removed. The removed conductive and photo-conductive powder are recycled to the process. The photo-conductive powder may consist of a photo-conductive layer surrounding a transparent core. Either or both of the layer and core may be of thermoplastic resin. Both the conductive and photoconductive layers of powder are preferably at least 20 microns thick. A plurality of layers of conductive particles may be applied. The insulative surface may be flat or shaped.
Patent GB-1083467-A (GB)
Title: Loudspeaker arrangement for stereophonic sound reproduction
IPC: H04R5/02
Filed: 1964-12-10
Abstract: 1,083,467. Loud-speakers. D. MANIERI. Dec. 10, 1964 [Jan. 31, 1964], No. 50328/64. Heading H4J. A sterophonic loud-speaker arrangement comprises a cabinet with loud-speakers attached to openings in the front and on each side. The openings on each side are disposed in vertical alignment one above the other and the openings at the front are disposed in one vertical line or in two vertical lines. A right-hand sound channel is electrically connected to the loud-speakers on one side and to at least one loud-speaker at the front. A left-hand sound channel is similarly electrically connected to the loud-speakers on the opposite side and to at least one loud-speaker at the front. The acoustic pressure from the side loud-speakers is greater than that at the front loud-speakers. The loud-speakers at the front combine to produce monophonic sounds. The stereophonic effect is the resultant of the acoustic pressures from the side loud-speakers relative to the acoustic pressures from the front loud-speakers. The loud-speakers of a channel may be connected in series or parallel but preferably the side loud-speakers are in series and are in series with the front loud-speakers, which are connected in parallel. By this means the correct acoustic pressures are obtained. Alternatively, the ratio between the surface areas of the front and side cones, or the ratio between the intensity of the magnetic fields of the loud-speakers determine the ratio of sound pressures.
Patent GB-1041129-A (GB)
Title: Control device for power steering in vehicles
IPC: F15B9/09
Filed: 1964-12-10
Abstract: 1,041,129. Power-assisted steering. FABBRICA ITALIANA MAGNETI MARELLE S.p.A. Dec. 10, 1964 [Dec. 13, 1963], No. 50395/64. Heading B7H. Solenoid-actuated valves 14, 15 controlling admission of pressurized air to a servo cylinder F assisting a vehicle steering mechanism are energized through contacts 34, 35 arranged on a support 18 on a steering shaft B for cooperation with a contact 36 mounted on the hub 24 of a steering wheel A coupled to the shaft B by a torsionally resilient connection. A spigot 26 on the hub 24 is rotatable in the shaft B and pins 22 project from the hub into resilient blocks 20 in the support 18. When sufficient force is exerted on the steering wheel A in either direction, the contact 36 engages the contact 34 or 35 and energizes one valve 14 or 15 to admit air to one end of the servo cylinder F, the other end remaining open to atmosphere through the other valve. Steering mechanism C connected to the shaft B actuates a lever D connected to the piston rod 10 of the servo cylinder F and to the steerable wheels of the vehicle. The valves 14, 15 may be combined in a single unit secured to the servo cylinder F. The resilient blocks 20 serve to prevent transmission of road shocks to the steering wheel A, and resilient gaskets may be inserted between the hub 24 and the shaft B so that the steering wheel is resiliently mounted longitudinally of the shaft to reduce injury to a driver in an accident.
Patent GB-1372195-A (GB)
Title: Teaching aid
IPC: G09B15/00
Filed: 1971-10-29
Abstract: 1372195 Teaching music E MULLER 29 Oct 1971 [6 Nov 1970] 50476/71 Heading G5X A teaching aid for the diagrammatic demonstration of the harmony sequences and keys which are in relation to one another under the laws of harmony, is in the form of two bar shaped parts adapted to be displaced by sliding together in the manner of a slide rule, which provides mechanically, indication of the chords, key sequences and enharmonic changes associated with any specific keynote. One of the two parts is a symbol carrier, its upper side comprising in equally spaced rows side by side and columns disposed transversely, the keynotes of all the major and minor series arranged on the basis of the circle of fifths or fourths. The other of the two parts is in the form of a mask with apertures over selected columns parallel to a column on the symbol carrier, so that for a specific setting, only one tonic and its functions are visible. The C major tonic column is situated centrally, and on both sides of it are disposed twelve other columns; to the extreme right is the enharmonic modulating key B sharp, and to the extreme left the enharmonic modulating key D double flat. Two secondary aperture columns are provided to unmask the functions of these two tonics. Two embodiments are described. The more simple comprises for each column, and corresponding to each major key therein, the dominant major, the double dominant major, the sub-dominant major, the double subdominant major and two secondary windows, numerically indicating the number of sharps and flats in the key signature of the tonic set. A more complex embodiment involves all the above described features, but in addition includes apertures showing the relative minors for these: the relative tonic, the relative dominant, the relative double dominant, the relative sub-dominant and the relative double subdominant. This embodiment includes a set of supplementary windows-the key sequences of the relative minors, namely the dominants and sub-dominants of the above mentioned functions of the relative tonic minor.
Patent GB-1532868-A (GB)
Title: Method of sizing an internal passage in a workpiece and apparatus therefor
IPC: B21C37/30
Filed: 1976-12-03
Abstract: 1532868 Sizing internal passages BESSER INDUSTRIES Inc 3 Dec 1976 [11 Feb 1976] 50485/76 Heading B3H A method of sizing an internal passage in a workpiece, e.g. a tube W, by passing an oversized ball 30 or other sizing member through the passage comprises establishing a differential fluid pressure on opposite sides of the sizing member to drive it at a controlled rate from one end of the passage to the other. The tubes W are fed by gravity into clamping assemblies 24, which hold them in alignment with head and tail end rams 16, 18. The ball 30 is raised by a mechanism 28 into alignment with a nozzle 32 and the rams 16, 18 are energized to drive the nozzle 32 together with the ball 30 and a nozzle 34 into the ends of the tube. Pressure fluid is fed into the tube via the nozzle 34 and when it is full, the fluid supply is transferred to the nozzle 32 to drive the ball through the tube. When it has travelled the length of the tube the ball falls into an inclined shoot to be returned to the raising mechanism 28.
Patent GB-1451468-A (GB)
Title: Apparatus for insulation of structures
IPC: B29C63/06
Filed: 1973-10-31
Abstract: 1451468 Coating apparatus DOW CHEMICAL CO 31 Oct 1973 [1 Nov 1972] 50637/73 Heading B2L [Also in Division B8] A strip of foam insulation, which may be preformed or produced in situ, is applied to a surface 14 by foam depositing means 29 maintained a predetermined distance from the surface and movably mounted on a support 20 which is movable in a predetermined path as an a rail 18. The foam depositing head, comprising driven perpendicular rolls 72, 73 in Fig. 3, is carried by a fourth frame 67 which is pivotable and slidable on a shaft 66 carried by a third frame 88 which is pivotable about a shaft 89 disposed normal to the shaft 66 and carried by a second frame 64 which is carried by four T- shaped levers 48, 49, 50, 51 pivoted at the corners of a first rectangular open frame 41 of the foam depositing means 29. The means for supporting an moving the frame 41 on the boom 20 are not shown. The apparatus further includes a roller 64a on an arm perpendicular to the frame 64 and rollers 116, 117 for engaging the surface to be insulated, pneumatic or hydraulic rams for relative movement of the frames, of which, the pneumatic ram 65 resiliently urges the frame 67 and head downwardly, guide rollers 104, 112, 118, 119 for an incoming strip of foam material, and a heated platen 81, which may be pivoted away, for softening the lower edge of the strip before application to heat seal it to the already laid strip. A series of rolls 148, 149, 150 and 151 are provided to unfold a portion 166 of a capping strip of aluminium foil onto the previously laid strip, application of heat causing an adhesive layer 163 to form a vapour impervious seal.
Patent GB-1125302-A (GB)
Title: Improvements in or relating to a circuit arrangement for fault protection in an electronic switch
Inventor: MORRIS ADRIAN GERALD
IPC: H03K17/60
Filed: 1965-11-30
Abstract: 1,125,302. Transistor switching circuits. M.E.L. EQUIPMENT CO. Ltd. 30 Nov., 1965, No. 50770/65. Heading H3T. A circuit arrangement for fault protection in an electronic switch which supplies current to a load impedance 33 in the event of the load becoming short circuited, includes an amplifier e.g. 34, 36 or 35, 37 having a positive and a negative feedback circuits, the load forming part of the positive feedback circuit, and the arrangement being such that when the load impedance is substantially zero, the voltage across the load is substantially zero, and when the load impedance is above a predetermined value the load is connected to one of two predetermined voltages, + or -16V. Supposing the polarity of the input 12-12 is such that the sine-wave oscillator 4 is operative, oscillator 5 being by-passed by forwardly conducting zener diode 7, then positive pulses rectified at 15 are applied to the bases of transistos 17, 18 switching on transistor 17, and hence transistors 25, 34, 36, and switching off transistors 26, 35 and 37, The + 16V supply is thus connected through transistor 36 and resistor 32 and also through transistor 25 and resistor 30 to the load 33. Should the polarity of the input be reversed, the states of the transistors are reversed and the load is connected to the -16V supply. Should the load become short circuited, the base of transistor 34 is earthed through the load and consequently transistors 34 and 36 are switched off. Transistors 17 and 25 are however not switched off, since the short circuiting of the load does not greatly affect the output impedance of Block 2, resistor 30 being high, of comparable value to that of the load. Block 2 thus acts as a memory to drive Block 3 back into its original state when the short circuit is removed. During short circuit, the load is supplied with current only through transistor 25 and high resistor 30. Each amplifier 34, 36 and 35, 37 is provided with positive feedback from the junction of load 33 and resistor 32 to the bases of transistors 34, 35 and negative feedback from the junction of resistors 42, 43 to the emitters of transistors 34, 35, which feedback paths determine the instability of Block 3 in the active regions.
Patent GB-1455756-A (GB)
Title: Transfer drum for printing presses
IPC: B41F21/10
Filed: 1974-11-22
Abstract: 1455756 Transfer cylinders of printing presses HEIDELBERGER DRUCKMASCHINEN AG 22 Nov 1974 [22 Nov 1973] 50788/74 Heading B6C A transfer drum, D, of a printing press comprises a rotary shaft 1, a row of segments 2 fixed to shaft 1 and a row of segments 5 which are angularly adjustable with respect to the fixed segments. The outer surfaces of the segments support sheets 28 which are gripped at their leading and trailing edges by unitary gripper bars 4, 6. Thus, different sheet sizes can be accommodated by angular adjstment of the segment rows, e.g. to a small format, Fig. 2 (not shown). The segments 2, 5 of the rows are staggered to permit them to interact in a comblike fashion, Fig. 5. When the sheet format is such that the segments 2, 5 do not constitute a continuous support surface, bridging members 8, 8<SP>1</SP> are arranged to span the gaps; these members 8, 8<SP>1</SP> are pivoted about bearing pins 10 journalled in segment 2, and have camming surfaces 9 interacting with rollers 14 mounted on segments 5; springs 13 cause the members 8, 8<SP>1</SP> to pivot inwards when not required, Fig. 2. In an alternative embodiment, Figs. 9 to 11 (not shown), the bridging members are arcuate straps (17), which are telescopically connected to grooves in the sheet-supporting segments.
Patent GB-1516160-A (GB)
Title: Tubular connectors
IPC: F16L17/025
Filed: 1975-12-11
Abstract: 1516160 Pipe joints LINDAB LINDHS INDUSTRI AB 11 Dec 1975 [12 Dec 1974] 50829/75 Heading F2G A tubular connector for insertion into a pipe 20 comprises a cylindrical portion 11 of a diameter substantially equal to the internal diameter of the pipe, a connecting portion 15 leading to an anchoring portion 12 of smaller diameter and thence to a bead 13 of intermediate diameter at the end of the connector, a U- section lip seal 16 being held in place on the portion 12 by an endless strap 19, the flanges 17 of the seal engaging the wall of the pipe 20 in the manner shown and the seal being enhanced by fluid pressure in the pipe. To reach the position shown, an initial insertion of the connector within the pipe 20, the flanges 17 will be inclined oppositely to the position shown one of the flanges lying adjacent the connecting portion 15. On partial withdrawal of the connection the inclination of the flanges 17 will be reversed to provide the desired seal. The pipe end connector need not be of round section but may be oval or rectangular, if desired.
Patent GB-1362486-A (GB)
Title: Process for preparing polyalkylene glycol alkyl polyphosphites
IPC: C08G79/04
Filed: 1972-11-06
Abstract: 1362486 Polyalkylene glycol polyphosphites STAUFFER CHEMICAL CO 6 Nov 1972 [8 Nov 1971] 51171/72 Heading C3R Polyalkylene glycol polyphosphites are made by initially reacting a polyalkylene glycol with a tertiary alkyl phosphite in a mole ratio of at least 2 : 1 and thereafter adding to and reacting with, the polyalkylene glycol phosphite product one additional mole of glycol for each mole of glycol consumed in the first reaction. Specified polyalkylene glycols are diethylene glycol, triethylene glycol, diphenylene glycol, tripropylene glycol, tributylene glycol, polyethylene glycols having an average of 2 ether units, polypropylene glycols having an average of 14 ether units and trihexylene glycol. Preferred phosphites are trimethyl, triethyl, tripropyl, tributyl and trioctyl phosphites, dimethyl ethyl phosphite and diethyl methylphosphite. An example describes the preparation of poly(dipropylene glycol methyl phosphite).
Patent GB-1463174-A (GB)
Title: Process for the production of formaldehyde by catalytic oxidation  of methanol
IPC: C07C45/38
Filed: 1974-11-27
Abstract: 1463174 Formaldehyde SOC ITALIANA RESINE SIR SpA 27 Nov 1974 [28 Nov 1973] 51412/74 Heading C2C A process for producing formaldehyde by continuously contacting a gaseous feed containing methanol and air with a metal oxide catalyst at elevated temperature is characterized in that the reaction is initially carried out in an isothermal stage and is completed in an adiabatic stage by: (a) flowing the said gaseous feed through a first stationary bed of the catalyst at elevated temperature while subtracting reaction heat from the bed thereby to maintain the latter under isothermal conditions such that the peak value of the temperature in the bed does not exceed 370‹ C. and the conversion of methanol does not exceed 85%; (b) conveying the effluent gaseous flow from said first bed through a second stationary bed of the catalyst without subtracting reaction heat from the latter bed, thereby to operate the said second bed under substantially adiabatic conditions, while keeping the linear velocity of the flow through the second bed lower than the linear velocity of the flow through the first bed by an extent such that the temperature in the second bed does not exceed 370‹ C. The first bed may be contained in a plurality of parallel tubes surrounded by a heat exchange medium. Waste gas may be mixed with the gaseous feed.
Patent GB-1060100-A (GB)
Title: Improvements in or relating to dispensers
Inventor: SHUTT JOHN RAYMOND COCK
IPC: A61C5/68
Filed: 1964-12-21
Abstract: 1,060,100. Delivering measured quantities of liquid. ENGELHARD INDUSTRIES Ltd. Dec. 8, 1965 [Dec. 21, 1964], No. 51957/64. Heading B8N. A dispenser for dispensing a measured quantity of a liquid and a solid, such as mercury, and an alloy for making a dental amalgam, comprises a casing 2, 3 having inlets 17, 31 and outlets 19, 22 for the liquid and solid and a control means 10, 12 adapted to be reciprocated from a position in which it receives liquid and a solid to a position in which the latter are both simultaneously discharged through an outlet 9, an adjustment means 7, 8 being provided for varying the amount of liquid dispensed. The control means for the liquid includes a rod 12 having a stem 13 to which is adjustably secured a sleeve 14 thereby providing a measuring chamber 18. The liquid is contained in a vessel 4 so that, in the position shown, the liquid flows into the measuring chamber. Upon movement of the rod to its alternative position, the liquid in the chamber flows through an outlet 19 into a common outlet 9. Simultaneously with the liquid a solid, in the form of a pellet, is delivered from a supply tube 5, Fig. 6 (not shown), into the common outlet 9, by means of a slide coupled to the rod 12. After the dispensing operation, the combined control means is returned to its initial position by means of a spring 20. The vessel 4 for the liquid is covered by a cap 23, Fig. 7 (not shown), having an air-filter 25.